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In this photo taken and released by PT Freeport Indonesia Friday, May 17, 2013, the Indonesian unit of Arizona-based Freeport-McMoRan Copper & Gold Inc, rescuers gather inside a tunnel that collapsed on Tuesday morning as they continue their attempt to rescue trapped workers at Big Gossan mining area in Mimika, Papua province, Indonesia. Mining activities at a giant U.S.-owned gold and copper mine in Indonesia are halted for four consecutive days as rescuers manually dig through a caved-in mine
/ AP